TASK: 批量生成 获取任务序号

src/main/java/com/ai/da/mapper/primary/BatchTaskSequenceMapper.java

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+package com.ai.da.mapper.primary;
+
+import com.ai.da.mapper.primary.entity.BatchTaskSequence;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+public interface BatchTaskSequenceMapper extends BaseMapper<BatchTaskSequence> {
+
+    @Update("UPDATE t_batch_task_sequence SET current_sequence = LAST_INSERT_ID(current_sequence + 1) WHERE account_id = #{userId}")
+    int incrementSequence(@Param("userId") Long userId);
+
+    @Select("SELECT LAST_INSERT_ID()")
+    Integer getLastInsertId();
+}

src/main/java/com/ai/da/mapper/primary/entity/BatchTaskSequence.java

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+package com.ai.da.mapper.primary.entity;
+
+
+import com.baomidou.mybatisplus.annotation.*;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@EqualsAndHashCode(callSuper = true)
+@TableName("t_batch_task_sequence")
+@Data
+public class BatchTaskSequence extends BaseEntity{
+
+    private Long accountId;
+
+    private Integer currentSequence;
+}